build.yaml

name: Build and lint Backend
on:
  push:
    branches: main
    paths:
      - "backend/**/*.ts"
      - "backend/**/*.js"
      - "backend/**/*.json"
      - "backend/yarn.lock"
      - "backend/prisma/schema.prisma"

defaults:
  run:
    shell: bash
    working-directory: ./backend
env:
  APP_PATH: /opt/MTB
  APP_NAME: bot
jobs:
  format:
    name: Run Prettier
    runs-on: ubuntu-latest

    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: "yarn"
          cache-dependency-path: backend/yarn.lock

      - name: Install Node.js dependencies
        run: yarn --immutable --prefer-offline

      - name: Running Prettier
        run: yarn run format

      - name: Check for changes and push changes to repository
        if: always()
        id: check_changes
        run: |
          if [[ -n $(git status --porcelain) ]]; then
            git config --global user.email "${GITHUB_ACTOR_ID}+${GITHUB_ACTOR}@users.noreply.github.com"
            git config --global user.name "${GITHUB_ACTOR}"
            git add .
            git commit -m "Fixed Prettier issues"
            git pull origin main --rebase
            git push
          fi
  linting:
    name: Run linter
    runs-on: ubuntu-latest
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: "yarn"
          cache-dependency-path: backend/yarn.lock

      - name: Install Node.js dependencies
        run: yarn --immutable --prefer-offline

      - name: Running ESLint
        run: yarn run lint

      - name: Check for changes and push changes to repository
        if: always()
        id: check_changes
        run: |
          if [[ -n $(git status --porcelain) ]]; then
            git config --global user.email "${GITHUB_ACTOR_ID}+${GITHUB_ACTOR}@users.noreply.github.com"
            git config --global user.name "${GITHUB_ACTOR}"
            git add .
            git commit -m "Fixed ESLint issues"
            git pull origin main --rebase
            git push
          fi
  test:
    name: Run tests
    runs-on: ubuntu-latest
    needs: [linting, format]
    # For now we need to allow tests to fail
    continue-on-error: true
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: "yarn"
          cache-dependency-path: backend/yarn.lock

      - name: Install Node.js dependencies and generate prisma client
        run: yarn --frozen-lockfile --prefer-offline && yarn run prisma:generate
      - name: Run tests
        run: yarn run test

  build:
    name: Build docker image
    runs-on: ubuntu-latest
    needs: [test]
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: "yarn"
          cache-dependency-path: backend/yarn.lock

      - name: Setup buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Github Packages
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set short git commit SHA
        id: vars
        run: |
          calculatedSha=$(git rev-parse --short ${{ github.sha }})
          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV

      - name: Build image and push to GitHub Container Registry
        uses: docker/build-push-action@v3
        with:
          context: "{{defaultContext}}:backend"
          platforms: linux/amd64
          push: true
          tags: ghcr.io/89q12/mega-transformers-bot:${{ env.COMMIT_SHORT_SHA }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    # Later also tests
    needs: [build]
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Set short git commit SHA
        id: vars
        run: |
          calculatedSha=$(git rev-parse --short ${{ github.sha }})
          echo "COMMIT_SHORT_SHA=$calculatedSha" >> $GITHUB_ENV

      - name: Set up SSH key
        run: |
          env
          mkdir -p ~/.ssh
          echo "${{ secrets.ARTIFACT_SSH_KEY }}" > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa
          ssh-keyscan -p 22 ${{ secrets.ARTIFACT_HOST }} >> ~/.ssh/known_hosts
      - name: Deploy to server
        run: |
          ssh -i ~/.ssh/id_rsa -v -o StrictHostKeyChecking=no ${{ secrets.SSH_USER }}@${{ secrets.ARTIFACT_HOST }} <<'ENDSSH'
          cd ${{ env.APP_PATH }}
          sed -E -i'' "s/(.*mega-transformers-bot:).*/\1${{ env.COMMIT_SHORT_SHA }}/" 'docker-compose.yml' 
          docker compose pull ${{ env.APP_NAME }}
          docker compose up -d
          ENDSSH
  docs:
    name: Build and deploy documentation
    runs-on: ubuntu-latest
    # Reasoning: We dont want to deploy docs of broken code, therefore we depend on tests
    needs: [test]
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: "yarn"
          cache-dependency-path: backend/yarn.lock

      - name: Install Node.js dependencies
        run: yarn --immutable --prefer-offline

      - name: Generate documentation
        run: yarn run docs

      - name: Deploy documentation
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./backend/docs
          publish_branch: gh-pages